Routing to the access layer to support mobility of internet protocol devices
US8520595B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2010 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/42
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for seamless integration of wired and wireless functionality packet forwarding in network. A plurality of access switches are provided in each of a plurality of mobility sub-domains that are part of a mobility domain of a network. Each access switch serves one or more Internet Protocol (IP) subnets, each comprising a plurality of IP addresses. An access switch obtains an IP address for a wireless device according to the one or more IP subnets that the access switch serves. The access switch sends an association advertisement message to indicate the IP address of the wireless device and to enable other access switches and routers to compute a path to the wireless device. When a wireless device obtains an IP address, it can keep the same IP address as it roams in the mobility domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.